Getty/Patrick T. Fallon
- Elon Musk appeared to boost a post last week that expressed anti-semitic sentiments.
- Some Tesla owners said they'd ditch his car company in favor of Rivian as a result.
- Musk and Tesla have survived similar controversies in the past.
As Tesla CEO Elon Musk once again courts controversy on his social media platform X, rival EV startup Rivian stands to gain from the fallout.